Asumo wrestling ring is circular and has a circumference of 4 . 6 π meters 4.6π meters. what is the area a a of the sumo wrestling ring in square meters? give your answer in terms of π π.

Step-by-step explanation:

Formula for circumference of a circle is:

Circumference =

Given circumference of the ring is

Now solving for the radius gives us:

We know that area of a circle is , substituting the value of r we found, we get the area as:

area (A) =

Hence the Area (A), in terms of is

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240